<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">

  <title>picture</title>

</head>
<body>

    <picture>
      <source srcset="https://picsum.photos/id/103/1200/900" media="(min-width: 1200px)">
      <source srcset="https://picsum.photos/id/103/800/600" media="(min-width: 800px)">
      <img src="https://picsum.photos/id/103/400/300">
    </picture>
  
</body>
</html>
